diff --git a/core/java/android/provider/DocumentsContract.java b/core/java/android/provider/DocumentsContract.java
index 3788c746826d3..03a1ca60ecf2f 100644
--- a/core/java/android/provider/DocumentsContract.java
+++ b/core/java/android/provider/DocumentsContract.java
@@ -568,6 +568,22 @@ public final class DocumentsContract {
          * @hide
          */
         public static final int FLAG_HAS_SETTINGS = 1 << 17;
+
+        /**
+         * Flag indicating that this root is on removable SD card storage.
+         *
+         * @see #COLUMN_FLAGS
+         * @hide
+         */
+        public static final int FLAG_REMOVABLE_SD = 1 << 18;
+
+        /**
+         * Flag indicating that this root is on removable USB storage.
+         *
+         * @see #COLUMN_FLAGS
+         * @hide
+         */
+        public static final int FLAG_REMOVABLE_USB = 1 << 19;
     }
 
     /**
diff --git a/packages/DocumentsUI/res/drawable/ic_sd_storage.xml b/packages/DocumentsUI/res/drawable/ic_sd_storage.xml
index b0f3cc395bcdc..5aeebbb6fc900 100644
--- a/packages/DocumentsUI/res/drawable/ic_sd_storage.xml
+++ b/packages/DocumentsUI/res/drawable/ic_sd_storage.xml
@@ -14,8 +14,8 @@ Copyright (C) 2015 The Android Open Source Project
     limitations under the License.
 -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:width="48dp"
-        android:height="48dp"
+        android:width="24dp"
+        android:height="24dp"
         android:viewportWidth="24.0"
         android:viewportHeight="24.0">
     <path
diff --git a/packages/DocumentsUI/res/drawable/ic_usb_storage.xml b/packages/DocumentsUI/res/drawable/ic_usb_storage.xml
new file mode 100644
index 0000000000000..2a8d024f3eec8
--- /dev/null
+++ b/packages/DocumentsUI/res/drawable/ic_usb_storage.xml
@@ -0,0 +1,24 @@
+<!--
+Copyright (C) 2015 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M15 7v4h1v2h-3V5h2l-3,-4,-3 4h2v8H8v-2.07c.7,-.37 1.2,-1.08 1.2,-1.93 0,-1.21,-.99,-2.2,-2.2,-2.2,-1.21 0,-2.2.99,-2.2 2.2 0 .85.5 1.56 1.2 1.93V13c0 1.11.89 2 2 2h3v3.05c-.71.37,-1.2 1.1,-1.2 1.95 0 1.22.99 2.2 2.2 2.2 1.21 0 2.2,-.98 2.2,-2.2 0,-.85,-.49,-1.58,-1.2,-1.95V15h3c1.11 0 2,-.89 2,-2v-2h1V7h-4z"/>
+</vector>
diff --git a/packages/DocumentsUI/src/com/android/documentsui/model/RootInfo.java b/packages/DocumentsUI/src/com/android/documentsui/model/RootInfo.java
index 29273a36b112f..3eaf10a18a0fb 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/model/RootInfo.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/model/RootInfo.java
@@ -16,6 +16,7 @@
 
 package com.android.documentsui.model;
 
+import static com.android.documentsui.Shared.DEBUG;
 import static com.android.documentsui.Shared.compareToIgnoreCaseNullable;
 import static com.android.documentsui.model.DocumentInfo.getCursorInt;
 import static com.android.documentsui.model.DocumentInfo.getCursorLong;
@@ -31,6 +32,7 @@ import android.os.Parcelable;
 import android.provider.DocumentsContract;
 import android.provider.DocumentsContract.Root;
 import android.text.TextUtils;
+import android.util.Log;
 
 import com.android.documentsui.IconUtils;
 import com.android.documentsui.R;
@@ -47,6 +49,8 @@ import java.util.Objects;
  * Representation of a {@link Root}.
  */
 public class RootInfo implements Durable, Parcelable, Comparable<RootInfo> {
+
+    private static final String TAG = "RootInfo";
     private static final int VERSION_INIT = 1;
     private static final int VERSION_DROP_TYPE = 2;
 
@@ -59,6 +63,8 @@ public class RootInfo implements Durable, Parcelable, Comparable<RootInfo> {
             TYPE_DOWNLOADS,
             TYPE_LOCAL,
             TYPE_MTP,
+            TYPE_SD,
+            TYPE_USB,
             TYPE_OTHER
     })
     @Retention(RetentionPolicy.SOURCE)
@@ -70,7 +76,9 @@ public class RootInfo implements Durable, Parcelable, Comparable<RootInfo> {
     public static final int TYPE_DOWNLOADS = 5;
     public static final int TYPE_LOCAL = 6;
     public static final int TYPE_MTP = 7;
-    public static final int TYPE_OTHER = 8;
+    public static final int TYPE_SD = 8;
+    public static final int TYPE_USB = 9;
+    public static final int TYPE_OTHER = 10;
 
     public String authority;
     public String rootId;
@@ -185,33 +193,40 @@ public class RootInfo implements Durable, Parcelable, Comparable<RootInfo> {
     private void deriveFields() {
         derivedMimeTypes = (mimeTypes != null) ? mimeTypes.split("\n") : null;
 
-        // TODO: remove these special case icons
         if (isHome()) {
+            derivedType = TYPE_LOCAL;
             derivedIcon = R.drawable.ic_root_documents;
-            derivedType = TYPE_LOCAL;
-        } else if (isExternalStorage()) {
-            derivedIcon = R.drawable.ic_root_smartphone;
-            derivedType = TYPE_LOCAL;
-            // TODO: Apply SD card icon to SD devices.
-        } else if (isDownloads()) {
-            derivedIcon = R.drawable.ic_root_download;
-            derivedType = TYPE_DOWNLOADS;
-        } else if (isImages()) {
-            derivedIcon = R.drawable.ic_doc_image;
-            derivedType = TYPE_IMAGES;
-        } else if (isVideos()) {
-            derivedIcon = R.drawable.ic_doc_video;
-            derivedType = TYPE_VIDEO;
-        } else if (isAudio()) {
-            derivedIcon = R.drawable.ic_doc_audio;
-            derivedType = TYPE_AUDIO;
-        } else if (isRecents()) {
-            derivedType = TYPE_RECENTS;
         } else if (isMtp()) {
             derivedType = TYPE_MTP;
+            derivedIcon = R.drawable.ic_usb_storage;
+        } else if (isUsb()) {
+            derivedType = TYPE_USB;
+            derivedIcon = R.drawable.ic_usb_storage;
+        } else if (isSd()) {
+            derivedType = TYPE_SD;
+            derivedIcon = R.drawable.ic_sd_storage;
+        } else if (isExternalStorage()) {
+            derivedType = TYPE_LOCAL;
+            derivedIcon = R.drawable.ic_root_smartphone;
+        } else if (isDownloads()) {
+            derivedType = TYPE_DOWNLOADS;
+            derivedIcon = R.drawable.ic_root_download;
+        } else if (isImages()) {
+            derivedType = TYPE_IMAGES;
+            derivedIcon = R.drawable.ic_doc_image;
+        } else if (isVideos()) {
+            derivedType = TYPE_VIDEO;
+            derivedIcon = R.drawable.ic_doc_video;
+        } else if (isAudio()) {
+            derivedType = TYPE_AUDIO;
+            derivedIcon = R.drawable.ic_doc_audio;
+        } else if (isRecents()) {
+            derivedType = TYPE_RECENTS;
         } else {
             derivedType = TYPE_OTHER;
         }
+
+        if (DEBUG) Log.d(TAG, "Finished deriving fields: " + this);
     }
 
     public Uri getUri() {
@@ -291,6 +306,14 @@ public class RootInfo implements Durable, Parcelable, Comparable<RootInfo> {
         return (flags & Root.FLAG_EMPTY) != 0;
     }
 
+    public boolean isSd() {
+        return (flags & Root.FLAG_REMOVABLE_SD) != 0;
+    }
+
+    public boolean isUsb() {
+        return (flags & Root.FLAG_REMOVABLE_USB) != 0;
+    }
+
     public Drawable loadIcon(Context context) {
         if (derivedIcon != 0) {
             return context.getDrawable(derivedIcon);
@@ -358,7 +381,14 @@ public class RootInfo implements Durable, Parcelable, Comparable<RootInfo> {
 
     @Override
     public String toString() {
-        return "Root{authority=" + authority + ", rootId=" + rootId + ", title=" + title + "}";
+        return "Root{"
+                + "authority=" + authority
+                + ", rootId=" + rootId
+                + ", title=" + title
+                + ", isUsb=" + isUsb()
+                + ", isSd=" + isSd()
+                + ", isMtp=" + isMtp()
+                + "}";
     }
 
     public String getDirectoryString() {
diff --git a/packages/ExternalStorageProvider/src/com/android/externalstorage/ExternalStorageProvider.java b/packages/ExternalStorageProvider/src/com/android/externalstorage/ExternalStorageProvider.java
index 3eda8ec1ee35d..9a51b057d135d 100644
--- a/packages/ExternalStorageProvider/src/com/android/externalstorage/ExternalStorageProvider.java
+++ b/packages/ExternalStorageProvider/src/com/android/externalstorage/ExternalStorageProvider.java
@@ -34,6 +34,7 @@ import android.os.Handler;
 import android.os.ParcelFileDescriptor;
 import android.os.ParcelFileDescriptor.OnCloseListener;
 import android.os.UserHandle;
+import android.os.storage.DiskInfo;
 import android.os.storage.StorageManager;
 import android.os.storage.VolumeInfo;
 import android.provider.DocumentsContract;
@@ -184,6 +185,14 @@ public class ExternalStorageProvider extends DocumentsProvider {
             root.flags = Root.FLAG_LOCAL_ONLY
                     | Root.FLAG_SUPPORTS_SEARCH | Root.FLAG_SUPPORTS_IS_CHILD;
 
+            final DiskInfo disk = volume.getDisk();
+            if (DEBUG) Log.d(TAG, "Disk for root " + rootId + " is " + disk);
+            if (disk != null && disk.isSd()) {
+                root.flags |= Root.FLAG_REMOVABLE_SD;
+            } else if (disk != null && disk.isUsb()) {
+                root.flags |= Root.FLAG_REMOVABLE_USB;
+            }
+
             if (volume.isPrimary()) {
                 // save off the primary volume for subsequent "Home" dir initialization.
                 primaryVolume = volume;